package com.webserver.http;

import jdk.internal.util.xml.impl.Input;

import java.io.IOException;
import java.io.InputStream;
import java.net.Socket;
import java.util.HashMap;
import java.util.Map;

public class HttpServletRequest {
    private Socket socket;
    private String method;//请求方式
    private String uri;//抽象路径
    private String protocol;//协议版本

    //消息头相关消息
    private Map<String,String> headers=new HashMap<>();

    public HttpServletRequest(Socket socket) throws IOException {
        this.socket = socket;
        //1.解析请求行
        parseRequestLine();
        //2.解析消息头
        parseHeaders();
        //3.解析消息正文
        parseContent();
    }
    private void parseRequestLine() throws IOException {
        String line=readLine();
        System.out.println(line);

        String[] array=line.split("\\s");
        method=array[0];
        uri=array[1];
        protocol=array[2];
        System.out.println(method);
        System.out.println(uri);
        System.out.println(protocol);

    }

    private void parseHeaders() throws IOException {
        while (true){
            String line=readLine();
            if (line.isEmpty()){
                break;
            }
            System.out.println(line);
            String[] array=line.split("\\s");
            headers.put(array[0],array[1]);
        }
        System.out.println(headers);
    }

    private void parseContent(){


    }

    private String readLine() throws IOException {
        InputStream in=socket.getInputStream();
        char pre='a',cur='a';
        StringBuilder builder=new StringBuilder();
        int d;
        while ((d=in.read())!=-1){
            cur=(char)d;
            if (pre==13&&cur==10){
                break;
            }
            builder.append(cur);
            pre=cur;
        }
        return builder.toString().trim();
    }

    public String getMethod() {
        return method;
    }

    public String getUri() {
        return uri;
    }

    public String getProtocol() {
        return protocol;
    }
    private String getHeader(String name){
        return headers.get(name);
    }
}
